I'm hoping to source a 4.5" SEAS Upper Midrange (model NPT-11-070-1) used on the NHT 2.9 and 3.3 speakers. Some of these drivers were sold for a meger $10 as part of Jack Hidley's NHT drivers and electronics surplus sale, but sadly I missed out. NHT does still have replacements in stock, but they're $80 and I don't need one that badly right now. If anyone who took advantage of Mr Hidley's sale is willing to sell one I'd really appreciate it. I'd also be interested in buying additional 3.3 drivers as well just to keep as spares.